Key Laboratory of Exercise and Health Sciences, Shanghai University of Sport, Shanghai, 200438, China.
Key Laboratory of Exercise and Health Sciences, Shanghai University of Sport, Shanghai, 200438, China; School of Athletic Performance, Shanghai University of Sport, Shanghai 200438, China.
Phys Ther Sport. 2024 Jan;65:1-6. doi: 10.1016/j.ptsp.2023.10.006. Epub 2023 Nov 9.
This study aimed to determine the effect of foot strike patterns and cadences in male runners with patellofemoral pain (PFP).
Cross-sectional study.
Biomechanics lab.
20 male runners with PFP were instructed to randomly complete six running conditions (three cadence conditions in rearfoot strike pattern (RFS) or forefoot strike (FFS)) under a preferred running speed.
The primary outcomes were peak knee joint and moment, and secondary outcomes were patellofemoral joint stress.
Running with increased cadence has a lower flexion angle (P = 0.027, η = 0.45), lower extension moment (P = 0.011, η = 0.29), lower internal rotation moment (P = 0.040, η = 0.17), lower patellofemoral stress (P = 0.029, η = 0.52) than preferred cadence. FFS running performed significantly lower flexion angle (P = 0.003, η = 0.39), lower extension moment (P < 0.001, η = 0.91), lower adduction moment (P = 0.020, η = 0.25) lower patellofemoral stress (P < 0.001, η = 0.81) than RFS running for all cadence.
Preliminary findings provide new perspectives for male runners with PFP to unload patellofemoral joint stress in managing PFP through the combination of the FFS pattern and increased cadence.
本研究旨在探讨男性髌股疼痛（PFP）患者的足着地方式和步频对膝关节的影响。
横断面研究。
生物力学实验室。
20 名男性 PFP 患者在其惯用跑步速度下，随机完成 6 种跑步条件（3 种步频下的后足着地模式（RFS）或前足着地（FFS））。
主要观察指标为膝关节峰值关节力矩，次要观察指标为髌股关节压力。
增加步频时，膝关节的屈曲角度更低（P=0.027，η=0.45），伸膝力矩更低（P=0.011，η=0.29），内旋力矩更低（P=0.040，η=0.17），髌股关节压力更低（P=0.029，η=0.52），与惯用步频相比。FFS 跑步时，膝关节的屈曲角度更低（P=0.003，η=0.39），伸膝力矩更低（P<0.001，η=0.91），内收力矩更低（P=0.020，η=0.25），髌股关节压力更低（P<0.001，η=0.81），与 RFS 跑步相比。
初步研究结果为男性 PFP 患者提供了新的视角，即通过 FFS 模式和增加步频结合的方式，可以减轻髌股关节的压力，从而治疗 PFP。
